Journal article
Radiation Doses in Interventional Radiology Procedures: The RAD-IR Study
Journal of vascular and interventional radiology, v 15(9), pp 919-926
2004
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
To present the physics data supporting the validity of the clinical dose data from the RAD-IR study and to document the performance of dosimetry-components of these systems over time.
Sites at seven academic medical centers in the United States prospectively contributed data for each of 12 fluoroscopic units. All units were compatible with International Electrotechnical Commission (IEC) standard 60601-2-43. Comprehensive evaluations and periodic consistency checks were performed to verify the performance of each unit's dosimeter. Comprehensive evaluations compared system performance against calibrated ionization chambers under nine combinations of operating conditions. Consistency checks provided more frequent dosimetry data, with use of each unit's built-in dosimetry equipment and a standard water phantom.
During the 3-year study, data were collected for 48 comprehensive evaluations and 581 consistency checks. For the comprehensive evaluations, the mean (95% confidence interval range) ratio of system to external measurements was 1.03 (1.00–1.05) for fluoroscopy and 0.93 (0.90–0.96) for acquisition. The expected ratio was 0.93 for both. For consistency checks, the values were 1.00 (0.98–1.02) for fluoroscopy and 1.00 (0.98–1.02) for acquisition. Each system was compared across time to its own mean value. Overall uncertainty was estimated by adding the standard deviations of the comprehensive and consistency measurements in quadrature. The authors estimate that the overall error in clinical cumulative dose measurements reported in RAD-IR is 24%.
Dosimetric accuracy was well within the tolerances established by IEC standard 60601-2-43. The clinical dose data reported in the RAD-IR study are valid.
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Details
- Title
- Radiation Doses in Interventional Radiology Procedures: The RAD-IR Study
- Creators
- Stephen Balter - Lenox Hill HospitalBeth A. Schueler - Mayo Clinic Rochester, MNDonald L. Miller - Uniformed Services University of the Health SciencesPatricia E. Cole - Yale UniversityHollington T. Lu - United States Food and Drug AdministrationAlejandro Berenstein - Yeshiva UniversityRobin Albert - Yeshiva UniversityJeffrey D. Georgia - National Institutes of HealthPatrick T. Noonan - Lahey Medical CenterEric J. Russell - Northwestern UniversityTim W. Malisch - Northwestern UniversityRobert L. Vogelzang - Northwestern UniversityMichael Geisinger - Cleveland ClinicJohn F. Cardella - SUNY Upstate Medical UniversityJames St George - Drexel UniversityGeorge L. Miller - The University of Texas Southwestern Medical CenterJon Anderson - The University of Texas Southwestern Medical CenterDavid Leslie Miller - Mechanical Engineering and Mechanics
- Publication Details
- Journal of vascular and interventional radiology, v 15(9), pp 919-926
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Mechanical Engineering and Mechanics
- Web of Science ID
- WOS:000227678600004
- Scopus ID
- 2-s2.0-4544269899
- Other Identifier
- 991019173992604721
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InCites Highlights
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Peripheral Vascular Disease
- Radiology, Nuclear Medicine & Medical Imaging